Asteroid General Data

1989 FC (4581 Asclepius)

General information

Preliminary designation	1989 FC
Name	Asclepius
Number	4581
Group	Apollo
Absolute magnitude	20.74
Approximate diameter (m)	190
Approximate mass (kg)	1.24·10¹⁰
Number of observations	418
Arc length (days)	11706

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	159.599128
a – orbit major semiaxis (astronomical units)	1.02125600
e – orbit eccentricity	0.35636200
ω – orbit ascending node-perihelion angle (degrees)	255.458785
Ω – longitude of orbit ascending node (degrees)	180.213447
i – orbit inclination to the ecliptic plane (degrees)	4.926061

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	228.444120	1.02778671	0.35667543	254.151307	182.912035	4.948731	0.66120044	1.041970
01/21/1858	168.603115	1.02917913	0.35697664	254.408066	182.491792	4.958554	0.66178622	1.044088
01/29/1887	93.648676	1.02920527	0.35678349	254.815255	182.083539	4.979898	0.66200182	1.044128
02/07/1916	29.923687	1.02880240	0.35690437	254.884293	181.618629	4.990429	0.66161833	1.043515
02/14/1945	321.634416	1.02917839	0.35695164	255.158941	181.251138	5.003686	0.66181148	1.044087
02/22/1974	257.827850	1.02822084	0.35633894	255.601877	180.883169	5.028763	0.66182571	1.042630
03/02/2003	240.006311	1.02181254	0.35675829	255.109380	180.508736	4.909857	0.65727244	1.032898
03/09/2032	269.479018	1.02133851	0.35645132	255.507908	180.132421	4.926414	0.65728105	1.032179
03/17/2061	289.309699	1.02472179	0.35665618	256.218649	179.731689	4.908700	0.65924843	1.037312
03/25/2090	269.676058	1.02578276	0.35735015	256.430580	179.313131	4.921775	0.65921914	1.038924
04/03/2119	260.819825	1.02354111	0.35708152	256.476964	178.989680	4.923328	0.65805350	1.035520
04/10/2148	279.770070	1.02207861	0.35643580	256.814826	178.650184	4.940142	0.65777320	1.033302
04/18/2177	298.004069	1.02377424	0.35670729	257.194295	178.255804	4.949457	0.65858651	1.035874

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